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Earnings Per Share | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The Company calculates basic earnings per common share by dividing net income attributable to the Company's common stockholders for the period by weighted-average shares of common stock outstanding for that period. Diluted earnings per common share takes into account the effect of dilutive instruments, such as convertible notes and performance share awards, and the number of incremental shares that are to be added to the weighted-average number of shares outstanding. During the three and six months ended June 30, 2018, the Company's Convertible Notes were determined to be dilutive and were included in the calculation of diluted earnings per common share under the "if-converted" method. Under this method, the periodic interest expense (net of applicable taxes) for dilutive notes is added back to the numerator and the number of shares that the notes are entitled to (if converted, regardless of whether they are in or out of the money) are included in the denominator. During the three and six months ended June 30, 2017, the Company's Convertible Notes were determined to be anti-dilutive and were not included in the calculation of diluted earnings per common share. During the three and six months ended June 30, 2018, the Company's PSUs awarded under the 2018 Long-Term Equity Incentive Program ("2018 Long-Term EIP") (see Note 21) were also determined to be dilutive and were included in the calculation of diluted earnings per common share under the treasury stock method. Under this method, common equivalent shares are calculated assuming that target PSUs vest according to the PSU Agreements and unrecognized compensation cost is used to repurchase shares of the Company’s outstanding common stock at the average market price during the reported period. The following table presents the computation of basic and diluted earnings per common share for the periods indicated (dollar and share amounts in thousands, except per share amounts):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2018 |  | 2017 (1) |  | 2018 |  | 2017 (1)
Basic Earnings per Common Share |  |  |  |  |  |  |  |
Net income attributable to Company |  | $ | 29,694 |  |  | $ | 14,336 |  |  | $ | 59,311 |  |  | $ | 33,517 |
Less: Preferred stock dividends |  | (5,925 | ) |  | (3,225 | ) |  | (11,850 | ) |  | (6,450 | )
Net income attributable to Company's common stockholders |  | $ | 23,769 |  |  | $ | 11,111 |  |  | $ | 47,461 |  |  | $ | 27,067 |
Basic weighted average common shares outstanding |  | 115,211 |  |  | 111,863 |  |  | 113,623 |  |  | 111,792 |
Basic Earnings per Common Share |  | $ | 0.21 |  |  | $ | 0.10 |  |  | $ | 0.42 |  |  | $ | 0.24 |
Diluted Earnings per Common Share: |  |  |  |  |  |  |  |
Net income attributable to Company |  | $ | 29,694 |  |  | $ | 14,336 |  |  | $ | 59,311 |  |  | $ | 33,517 |
Less: Preferred stock dividends |  | (5,925 | ) |  | (3,225 | ) |  | (11,850 | ) |  | (6,450 | )
Add back: Interest expense on convertible notes for the period, net of tax |  | 2,633 |  |  | — |  |  | 5,267 |  |  | — |
Net income attributable to Company's common stockholders |  | $ | 26,402 |  |  | $ | 11,111 |  |  | $ | 52,728 |  |  | $ | 27,067 |
Weighted average common shares outstanding |  | 115,211 |  |  | 111,863 |  |  | 113,623 |  |  | 111,792 |
Net effect of assumed PSUs vested |  | 258 |  |  | — |  |  | 152 |  |  | — |
Net effect of assumed convertible notes conversion to common shares |  | 19,695 |  |  | — |  |  | 19,695 |  |  | — |
Diluted weighted average common shares outstanding |  | 135,164 |  |  | 111,863 |  |  | 133,470 |  |  | 111,792 |
Diluted Earnings per Common Share |  | $ | 0.20 |  |  | $ | 0.10 |  |  | $ | 0.40 |  |  | $ | 0.24 |
(1) | For the three and six months ended June 30, 2017, the Company's Convertible Notes were determined to be anti-dilutive and were not included in the calculation of diluted earnings per common share. There were no dilutive PSU awards during the three and six months ended June 30, 2017.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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